src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

*** 59,68 ****
--- 59,69 ----
      private static native void nativeSetNSWindowAlpha(long nsWindowPtr, float alpha);
      private static native void nativeRevalidateNSWindowShadow(long nsWindowPtr);
      private static native void nativeSetNSWindowMinimizedIcon(long nsWindowPtr, long nsImage);
      private static native void nativeSetNSWindowRepresentedFilename(long nsWindowPtr, String representedFilename);
      private static native void nativeSetNSWindowSecurityWarningPositioning(long nsWindowPtr, double x, double y, float biasX, float biasY);
+     private static native void nativeSynthesizeMouseEnteredExitedEvents(long nsWindowPtr);
  
      private static native int nativeGetScreenNSWindowIsOn_AppKitThread(long nsWindowPtr);
  
      // Loger to report issues happened during execution but that do not affect functionality
      private static final PlatformLogger logger = PlatformLogger.getLogger("sun.lwawt.macosx.CPlatformWindow");
*** 580,589 ****
--- 581,592 ----
                          break;
                  }
              }
          }
  
+         nativeSynthesizeMouseEnteredExitedEvents(nsWindowPtr);
+ 
          // 6. Configure stuff #2
          updateFocusabilityForAutoRequestFocus(true);
  
          // 7. Manage parent-child relationship when showing
          if (visible) {
*** 789,798 ****
--- 792,803 ----
                  break;
              default:
                  throw new RuntimeException("Unknown window state: " + windowState);
          }
  
+         nativeSynthesizeMouseEnteredExitedEvents(nsWindowPtr);
+ 
          // NOTE: the SWP.windowState field gets updated to the newWindowState
          //       value when the native notification comes to us
      }
  
      // ----------------------------------------------------------------------